Have you wieghed your car? a good front to rear ratio helps a ton? A fourlink with a diagnal link or a wishbone and some coilovers would go a long way in hooking that car! It takes a lot of time to setup a car that runs hard on a small tire! I'm assuming it is caged how many points? What kind of times are you running?
what do you launch the car at? do you have a trans brake? How big is the converter?